<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <!-- <link rel="stylesheet" href="	https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/css/bootstrap.min.css"> -->
  <link rel="stylesheet" href="./css/bootstrap.min.css"></link>
  <style>
    .red {
      color: red;
    }
  </style>
</head>
<body>
  <div id="app">
    <div class="container">
      <!-- 顶部搜索框模块 -->
      <div class="form-group">
        <div class="input-group">
          <h4>品牌管理</h4>
        </div>
      </div>

      <!-- 数据表格 -->
      <table class="table table-bordered table-hover mt-2">
        <thead>
          <tr>
            <th>编号</th>
            <th>资产名称</th>
            <th>价格</th>
            <th>创建时间</th>
            <th>操作</th>
          </tr>
        </thead>
        <tbody>
          <tr v-for="(item, index) in list" :key="item.id">
            <td>{{item.id}}</td>
            <td>{{item.name}}</td>
            <td :class="{red:item.price > 100}">{{item.price}}</td>
            <td>{{item.time}}</td>
            <td><a href="#" @click.prevent="del(item)">删除</a></td>
          </tr>
          <tr style="background-color: #EEE" v-if="list.length > 0">
            <td>统计:</td>
            <td colspan="2">总价钱为：{{total}}</td>
            <td colspan="1">平均价为：{{avg}}</td>
          </tr>
        </tbody>
        <tfoot>
          <tr>
            <td colspan="5" style="text-align: center" v-if="list.length < 1">暂无数据</td>
          </tr>
        </tfoot>
      </table>

      <!-- 添加资产 -->
      <form class="form-inline">
        <div class="form-group">
          <div class="input-group">
            <input type="text" class="form-control" placeholder="资产名称" v-model="name"/>
          </div>
        </div>
        &nbsp;&nbsp;&nbsp;&nbsp;
        <div class="form-group">
          <div class="input-group">
            <input type="text" class="form-control" placeholder="价格" v-model="price"/>
          </div>
        </div>
        &nbsp;&nbsp;&nbsp;&nbsp;
        <!-- 阻止表单提交 -->
        <button class="btn btn-primary" @click.prevent="addList">添加资产</button>
      </form>
    </div>
  </div>
  <script src="./js/vue.js"></script>
  <script>
    const app = new Vue({
      el: '#app',
      data: {
        name: "", // 名称
        price: "", // 价格
        list: [],
      },
      methods: {
        del(item) {
          this.list.splice(this.list.indexOf(item), 1);
        },
        addList() {
          if (this.name && this.price) {
            this.list.push({
              id: this.list.length + 1,
              name: this.name,
              price: parseFloat(this.price),
              time: new Date()
            });
            this.name = '';
            this.price = '';
          }else{
            alert('请输入资产名称或价格');
          }
        },
      },
      computed: {
        // 计算list的总价格
        total() {
          return this.list.reduce((price, item) => price + parseFloat(item.price), 0);
        },
        avg() {
            // 平均值的小数点在后两位
          return (this.list.length ? this.total / this.list.length : 0).toFixed(2);
        }
      }
    })
  </script>

</body>
</html>